2 years ago

To solve this expression, which operation should be performed last?

Mathematics

1 answer:

Vladimir79 [104]2 years ago

6 0

D. Add 5 to 2 because you start with the parentheses first

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Please help!?! Last grade for my 4th quarter of quarantine school!

viva [34]

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Step-by-step explanation:

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3 years ago

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Determine the area of the triangular ABC with AC=5cm and height DB=30 mm.<br>

Lady_Fox [76]

Answer:

750 mm²

Step-by-step explanation:

<h3>Area of triangle:</h3>

To find the area of the triangle, multiply the base and height and then divide the result by 2.

$\sf \boxed{\bf Area \ of \ triangle = \dfrac{1}{2}*base *height}$

base = AC = 5 cm = 50 mm

height = DB = 30 mm

$\sf = \dfrac{1}{2}*50*30\\\\= 25 *30\\\\= 750 \mm^2$

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1 year ago

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3 years ago

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What is the leading coefficient that would be used for scientific notation of this number? (12,500,000,000)

SIZIF [17.4K]

Answer:

1.25 would be the leading coefficient

Step-by-step explanation:

Leading coefficients in scientific notation have to be more than 1, and less than 10. Therefore, 12.5 or 0.125 would not be correct answers as they do not fit the criteria. Only 1.25 would work as the leading coefficient.

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2 years ago

If 7 + 3x = 22, then 2x =

ELEN [110]

$7+3x=22\ \ \ /-7\\3x=15\ \ \ /:3\\x=5\\\\\\2x=2\cdot5=10$

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2 years ago